Plucking was easiest for us when we got a good scald, about 140-145 degrees for 30-60 seconds. Agitate the birds up & down to get the hot water between the feathers to the skin. I used a big stock pot heated to boiling on the stove, wasn't much of a bother to carry out to the work table. It could be kept warm over a fire or camp stove. I'm trying to locate a cheap/free turkey fryer to use next time.
I found a discarded metal porch swing frame we used for hanging the birds by their zip-tied feet so we'd have both hands free for plucking. Bent wire coat hangers made sturdy hooks for hanging. If we got a good enough scald the feathers came off as easily as removing the lint from a dryer trap. If parts got tough to pull the bird could be re-dipped to loosen the feathers on those parts.
I wish you ease & success, whatever you choose!